a chinese ship will join the search, hope to go reach depths of 23,000 feet, a navy submersible reached 15,000 feet before malfunctioning last week. the missing jet with 239 onboard disappeared in early march. >> an apology coming from north korean officials following the collapse of an apartment building. hundreds of feared dead after the 23 stories building under construction collapsed last week. 92 families had already moved into the unfinished building. >> south korea's president saying she will displanting the coast guard because of its response to the deadly ferry accident. the president making that announcement during a tearful pal gee as she accepted full responsibility for the government's handling of the disaster. >> south korea's president cried openly as she addressed her nation, paying tribute to those who had given their lives to save others. she assumed direct responsibility for the loss of more than 300 lives, so many of them school children. >> i apologize to the nation for the pain and suffering that everyone felt. as the president, i should be responsible for the safe